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Use different Python version with virtualenv
... edited Dec 4 '18 at 19:54
wjandrea
12.3k55 gold badges2424 silver badges4747 bronze badges
answered Oct 7 '09 at 21:33
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Consistency of hashCode() on a Java string
...because the algorithm has been specified... so long as you're willing to abandon compatibility with releases before the algorithm was specified, of course.
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Can I concatenate multiple MySQL rows into one field?
... your needs. To calculate and assign the value:
SET group_concat_max_len = CAST(
(SELECT SUM(LENGTH(hobbies)) + COUNT(*) * LENGTH(', ')
FROM peoples_hobbies
GROUP BY person_id)
AS UNSIGNED
);
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Difference between numeric, float and decimal in SQL Server
...link:
"I frequently do calculations against decimal values. In some cases casting decimal values to float ASAP, prior to any calculations, yields better accuracy. "
http://sqlblog.com/blogs/alexander_kuznetsov/archive/2008/12/20/for-better-precision-cast-decimals-before-calculations.aspx
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Extract date (yyyy/mm/dd) from a timestamp in PostgreSQL
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You can cast your timestamp to a date by suffixing it with ::date. Here, in psql, is a timestamp:
# select '2010-01-01 12:00:00'::timestamp;
timestamp
---------------------
2010-01-01 12:00:00
Now we'll cast it to a ...
Why doesn't Java support unsigned ints?
...tially can be treated as an unsigned integer. You would have to explicitly cast arithmetic operations back into char, but it does provide you with a way to specify unsigned numbers.
char a = 0;
char b = 6;
a += 1;
a = (char) (a * b);
a = (char) (a + b);
a = (char) (a - 16);
b = (char) (b % 3);
b = ...
Efficiently convert rows to columns in sql server
... + 'SELECT ''INSERT INTO @ColumnListWithActions VALUES ('' + CAST( ROW_NUMBER() OVER (ORDER BY [NAME]) as nvarchar(10)) + '', '' + '''''''' + [NAME] + ''''''''+ '', ''''S'''');'''
+ 'FROM [' + @DB_Name + '].sys.columns '
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SQL: IF clause within WHERE clause
...his without any IF or CASE
WHERE
(IsNumeric(@OrderNumber) AND
(CAST OrderNumber AS VARCHAR) = (CAST @OrderNumber AS VARCHAR)
OR
(NOT IsNumeric(@OrderNumber) AND
OrderNumber LIKE ('%' + @OrderNumber))
Depending on the flavour of SQL you may need to tweak the casts on the orde...
Spring ApplicationContext - Resource leak: 'context' is never closed
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A simple cast solves the issue:
((ClassPathXmlApplicationContext) fac).close();
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How get integer value from a enum in Rails?
... :(
The best method I can see for now is:
my_model.sale_info_before_type_cast
Shadwell's answer also continues to work for rails 5.
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